Field device and information providing method

Abstract

A field device according to one aspect of the present invention includes a plurality of types of sensors, at least one converter configured to acquire measured results of the plurality of types of sensors and to convert the measured results into measured information, the measured information being a physical quantity, and an information providing device configured to acquire and store the measured information from the at least one converter and to provide the stored measured information to an outside of the field device in a case that a predetermined condition is satisfied.

What is claimed is: 
     
       1. A field device comprising:
 a plurality of types of sensors; 
 at least one converter configured to acquire measured results of the plurality of types of sensors and to convert the measured results into measured information, the measured information being a physical quantity; and 
 an information providing device comprising:
 at least one memory storing instructions; and 
 at least one processor configured to execute the instructions to: 
 acquire and store the measured information from the at least one converter; and 
 provide the stored measured information to an outside of the field device in a case that a predetermined condition is satisfied, 
 
 wherein 
 at least one of the plurality of types of sensors is mounted on a ground ring, and 
 a data input/output terminal is provided at a junction between a main body of the field device and the ground ring to allow the main body of the field device and the at least one of the plurality of types of sensors to be communicatively connected to each other. 
 
     
     
       2. The field device according to  claim 1 , wherein
 the information providing device comprises a communicator configured to provide the stored measured information to the outside of the field device by transmitting the stored measured information as a radio signal. 
 
     
     
       3. The field device according to  claim 1 , wherein
 the information providing device comprises an external input to which an external device is connectable. 
 
     
     
       4. The field device according to  claim 1 , wherein
 the at least one processor of the information providing device is configured to execute the instructions to: 
 perform statistical processing using the acquired measured information; and 
 provide statistical processing information based on a result of the statistical processing to an outside of the field device. 
 
     
     
       5. The field device according to  claim 4 , wherein
 the plurality of types of sensors comprise a first sensor and a second sensor, a type of the first sensor being different from the second sensor, 
 the at least one converter comprises:
 a first converter configured to acquire a first measured result of the first sensor and to convert the first measured result into first measured information, the first measured information being a physical quantity; and 
 a second converter configured to acquire a second measured result of the second sensor and to convert the second measured result into second measured information, the second measured information being a physical quantity, and 
 
 the at least one processor of the information providing device is configured to execute the instructions to perform the statistical processing using the first measured information and the second measured information. 
 
     
     
       6. The field device according to  claim 5 , wherein
 the first sensor is a flow sensor and the second sensor is a temperature sensor. 
 
     
     
       7. The field device according to  claim 6 , wherein
 the at least one processor of the information providing device is configured to execute the instructions to perform a multiple regression calculation using the first measured information and the second measured information. 
 
     
     
       8. The field device according to  claim 1 , wherein
 the at least one processor of the information providing device is configured to execute the instructions to acquire the measured information of the plurality of types of sensors at the same time. 
 
     
     
       9. The field device according to  claim 1 , wherein
 the condition is that a predetermined time has arrived. 
 
     
     
       10. The field device according to  claim 1 , wherein
 the condition is that a predetermined period of time has elapsed. 
 
     
     
       11. The field device according to  claim 1 , wherein
 the condition is that an information transmission request from an outside of the field device has been received. 
 
     
     
       12. The field device according to  claim 1 , wherein
 the plurality of types of sensors comprise at least two of a flow sensor, a temperature sensor, a pressure sensor, a conductivity sensor, and a pH sensor. 
 
     
     
       13. An information providing method comprising:
 acquiring measured results of a plurality of types of sensors provided in a field device; 
 converting the measured results into measured information, the measured information being a physical quantity; 
 storing the measured information; and 
 providing the stored measured information by an information providing device to an outside of the field device in a case that a predetermined condition is satisfied, 
 wherein at least one of the plurality of types of sensors is mounted on a ground ring, and 
 wherein a data input/output terminal is provided at a junction between a main body of the field device and the ground ring to allow the main body of the field device and the at least one of the plurality of types of sensors to be communicatively connected to each other. 
 
     
     
       14. The information providing method according to  claim 13 , wherein
 providing the stored measured information to the outside of the field device comprises transmitting the stored measured information as a radio signal. 
 
     
     
       15. The information providing method according to  claim 13 , further comprising:
 acquiring a measured result from an external device. 
 
     
     
       16. The information providing method according to  claim 13 , further comprising:
 performing statistical processing using the measured information; and 
 providing statistical processing information based on a result of the statistical processing to an outside of the field device. 
 
     
     
       17. The information providing method according to  claim 13 , wherein
 storing the measured information comprises acquiring the measured information of the plurality of types of sensors at the same time and storing the acquired measured information. 
 
     
     
       18. The information providing method according to  claim 13 , wherein
 the condition is that a predetermined time has arrived. 
 
     
     
       19. The information providing method according to  claim 13 , wherein
 the condition is that a predetermined period of time has elapsed. 
 
     
     
       20. The information providing method according to  claim 13 , wherein the condition is that an information transmission request from an outside of the field device has been received.